211,454+ Lead Software Engineer Pythonreact Jobs in Toronto, Canada — Local Employers Hiring June 2026

Professional job seekers finding Canada jobs through Expertini
750,000+ professionals on Expertini 750,000+ Candidates
Join our global community
Expertini Penguin Mascot Resume Score™
Resume Score™ Instantly
Upload Your CV
Quick 30-second process

Apply Today & Jumpstart Your Career on Expertini, Trusted Since 2008.

Reset

Create Job Alert

 
   
Reset

Lead Site Reliability Engineer Access

Lead Site Reliability Engineer - Access page is loaded## Lead Site Reliability Engineer - Accesslocations:Torontotime type:Full timeposted on:Posted Yesterdayjob requisition id:R- **WHAT MAKES US, US**Join some of the most innovative thinkers in FinTech as we lead the evol ...

Lead Engineer, Boiler House Operations

Drive operational excellence as Lead Engineer, Boiler House. Manage the safe and compliant operation of boiler systems, focusing on maintenance, training, and efficiency improvements.This position requires strong leadership and technical skills to ensure all boiler equipment operates safely and effectively. ...

Lead Structural Engineer Bridges & Infrastructure

A government transportation agency in Toronto seeks a Lead Engineer, Structural to oversee engineering projects and ensure safety on transportation corridors. The ideal candidate will lead teams in structural design and project delivery, requiring a Professional Engineer license with expertise in bridge and tran ...

Geotechnical Lead Engineer in Tunneling

Elevate your career as a Geotechnical Lead Engineer in Tunneling. Spearhead the design and execution of underground projects while mentoring a new generation of engineers.This senior position demands expertise in managing complex tunneling and excavation designs, applying sound engineering principles, and ma ...

Water Building Mechanical Lead Engineer

A leading engineering firm located in Ontario seeks a Team Lead - Building Mechanical Engineers specializing in HVAC and plumbing systems. This role involves managing a team, ensuring technical excellence in project delivery, and requires strong leadership and design skills. Ideal candidates will have a Bachelor ...

Lead Python Full Stack Engineer

Responsibilities Develop and maintain: Build and refine responsive front‑end applications applying Angular or ReactJS, and robust backend APIs by applying Python for AWS Lambda. Cloud architecture: Build, deploy, and manage scalable applications on AWS, bringing to bear services l ...

ADMS Lead Engineer Systems & Integrations

A leading engineering firm located in Toronto, Ontario is seeking an experienced ADMS Lead. The ideal candidate will have 10-15 years of experience in ADMS or OMS implementations, knowledge of major vendors, and strong problem-solving skills. Responsibilities include ensuring system integrity, collaborating with ...

Lead Electrical Engineer Traffic signaling

About Us Are you ambitious and looking to make the right move in your career? Now is the perfect time to join Egis. Egis is experiencing substantial growth in North America, now made up of over 1,000 engineers, architects and planners across Canada and the USA. This strategic move underscores our commitment to i ...

Lead Engineer for Distributed Systems

Transform backend architectures as a leading Staff Engineer. Design innovative solutions while actively mentoring junior developers to achieve high-quality outcomes in different domains.In this pivotal role, you’ll lead initiatives to architect user-facing applications while integrating best practices ...

Lead GRC Engineer at Vanta

Elevate your engineering career at Vanta as a Principal Software Engineer in Governance, Risk, and Compliance. Take on leadership and innovation in this exciting role focused on secure practices.This Principal Software Engineer position at Vanta offers an opportunity to directly influence engineering c ...

DevSecOps & Secure SDLC Lead Engineer

Contribute to vital security measures as a Lead Engineer specializing in DevSecOps and Secure-SDLC. This role is essential for implementing security policies and enhancing software development best practices.Your work will focus on defining secure development requirements and ensuring comprehensive int ...

Lead Electrical Engineer Rail Projects

Become a key player in rail electrification with WSP as a Senior Electrical Engineer. You'll be instrumental in designing systems that support pivotal transportation initiatives across Canada.WSP is looking for a Senior Electrical Engineer to join their dynamic team specializing in rail electrification ...

Lead Electrical Engineer Traffic signaling

Lead Electrical Engineer (Traffic Signal) The Lead Electrical Engineer (Traffic Signal) is responsible for overseeing the design, development, and implementation of traffic signal and roadway lighting systems for complex projects. This role provides technical leadership, ensures compliance with industry and muni ...

Lead Full Stack Development Engineer

Lead Full Stack Development Engineer We are seeking a Lead Full Stack Development Engineer to join our Technology & Operations team. This role is ideal for a seasoned engineer who thrives in a collaborative, high-performance environment and is passionate about building scalable, secure, and innov ...

Senior Electrical Engineer – Electrification Lead

BBA is seeking a forward-thinking Senior Electrical Engineer to help lead our growing work in load electrification, distributed energy resources (DERs), and medium-voltage interconnections across Ontario. This role combines technical delivery, client engagement, and strategic growth—supporting electrificat ...

Lead QA/Test Automation Engineer

Overview Lead QA/Test Automation Engineer with expertise in automation testing and AI-driven quality solutions to lead innovation in our Core and Realtime Payments QE team. This role will spearhead the design and implementation of automation frameworks, drive POC initiatives, and integrate AI/ML ...

Lead Engineer for Windows Applications

Elevate your engineering career with Speechify as the Lead Engineer for Windows Applications based in Toronto, Canada. Design and drive architecture that supports accessibility for millions of users.As a Senior Software Engineer, you will spearhead the development of native Windows desktop applications with ...

Lead Platform Engineer at Semrush

Become a key contributor at Semrush as a Senior Integration Platform Engineer within the Sales Team. Your expertise will shape the integration and data frameworks vital for business growth.This senior role encompasses ownership of the core integration platform and focuses on the design of secure cloud servic ...

Lead Engineer EHV Transmission Design

Elevate your career with Sargent & Lundy as a Lead Engineer specializing in EHV transmission line design on a hybrid schedule. Take charge of high-voltage projects, fostering collaboration and mentorship.As a Lead Engineer at Sargent & Lundy, you will direct design efforts for transmission lines ranging from ...

Lead Platform Engineer, TD Securities

Nous et certains tiers sélectionnés utilisons des technologies et des outils de suivi (témoins) pour recueillir des renseignements sur votre utilisation de ce site Web. Les témoins essentiels soutiennent les fonctionnalités de base du site, la sécurité et la protection des renseignements personnels. Ils restent ...

Lead Electrical Engineer Traffic signaling

Lead Electrical Engineer (Traffic Signal) The Lead Electrical Engineer (Traffic Signal) is responsible for overseeing the design, development, and implementation of traffic signal and roadway lighting systems for complex projects. This role provides technical leadership, ensures compliance with i ...

Bridge Inspection Lead Engineer Role

Lead critical bridge inspection initiatives as a Senior Structural Engineer. Oversee and execute comprehensive assessments of transportation structures with a strong focus on safety and design integrity.In this pivotal role, you will coordinate inspections and manage the structural engineering aspects of tra ...

Lead Medical Device Development Engineer

Shape the future of healthcare with Inertia as a Lead Medical Device Development Engineer, where you will manage key projects and client partnerships. Embrace a role that requires strategic oversight and technical proficiency in a hybrid work setting.In this senior role, your expertise in engineering and tea ...

Lead MLOps Engineer at Manulife

Join Manulife as a Lead ML Engineer focused on MLOps and LLMOps, driving initiatives in Azure. You’ll own the MLOps framework and facilitate collaboration across AI and ML teams.In this senior role, you will oversee the rollout of MLOps practices globally, working with lead data scientists and engineers. You ...

Lead AI Engineer (Azure / GenAI)

Job Title: Lead AI Engineer (Azure / GenAI) Location: Toronto, ONWork Style: Hybrid (2 days per week in-person at Toronto office preferred)Skills: Digital: Natural Language Processing (NLP), Digital: Azure Machine Learning (ML), AI & GenAI for BPS Experience Required: 8-10Job Descri ...

Lead Integration Engineer Insurance Automation

Step into a pivotal role as an Integration Lead, specializing in insurance workflow automation for a top financial client. Leverage your engineering expertise to drive enterprise-level AI solutions.This role focuses on leading the technical execution of a large-scale automation initiative. You will col ...

AI & Emerging Tech Lead Engineer

Join CPP Investments as a Lead Engineer for AI and Emerging Technology in New York. This pivotal role blends coding with leadership to shape innovative AI solutions through hands-on development.As a Lead Engineer, you will spearhead the design and deployment of AI solutions, collaborating with teams to ...

Lead DevOps Engineer for Payments

Join Insight Global as a Lead DevOps Engineer to oversee a Camunda 8 workflow platform supporting high-volume payment processing. This role focuses on operating and stabilizing automated transaction systems.In this position, you will lead the DevOps support for a distributed transaction processing plat ...

Lead Databricks Data Engineer Role

Join Tata Consultancy Services as a Lead Databricks Data Engineer, where you will spearhead data transformation initiatives. This role combines Databricks expertise with finance data modeling in a collaborative hybrid setting.Your primary focus will be transitioning legacy Cloudera platforms to a cloud ...

Lead ML Engineer MLOps/LLMOps

As a Lead ML Engineer focusing on MLOps and LLMOps at Manulife, you will be at the heart of a data-driven culture! You will serve as the product owner for Manulife's MLOps framework, standards, and guidelines, maintaining the central GitHub MLOps repository, and fostering a community around it.You’ll s ...

Lead Machine Learning Engineer, GFT

OverviewYou will be part of a high-performing GenAI and Mobile Team that is dedicated to delivering innovative, AI-driven solutions across the banking and finance technology landscape. We value talent, tenacity, meticulousness, and a results-focused mindset, and we are looking for an experienced Machine Learning ...

Lead Devops Platform Engineer (Toronto)

Day-to-DayInsight Global is seeking a Lead DevOps Engineer to support a distributed, high‑volume transaction processing platform within Global Payments Technology function. This role is not traditional DevOps. The focus is on operating, scaling, and stabilizing Camunda8‑based workflow platforms used fo ...

Lead ML Engineer MLOps/LLMOps

As a Lead ML Engineer focusing on MLOps and LLMOps at Manulife, you will be at the heart of a data-driven culture! You will serve as the product owner for Manulife's MLOps framework, standards, and guidelines, maintaining the central GitHub MLOps repository, and fostering a community around it. You ...

Lead MLOps Engineer at Manulife

Join Manulife as a Lead ML Engineer focused on MLOps and LLMOps, driving initiatives in Azure. You’ll own the MLOps framework and facilitate collaboration across AI and ML teams.In this senior role, you will oversee the rollout of MLOps practices globally, working with lead data scientists and engineer ...

DevSecOps & Secure SDLC Lead Engineer

Contribute to vital security measures as a Lead Engineer specializing in DevSecOps and Secure-SDLC. This role is essential for implementing security policies and enhancing software development best practices.Your work will focus on defining secure development requirements and ensuring comprehensive integrati ...

Lead Backend Engineer at EvenUp

Transform legal technology as a Lead Backend Engineer at EvenUp. This hybrid role in downtown San Francisco offers a chance to innovate while impacting personal injury law outcomes.With 5-10 years of engineering experience, you'll be instrumental in creating new products that drive efficiency for law firms a ...

Remote Lead Smart Contract Engineer

Build-A-Bera is seeking a Smart Contract Engineer to design and implement secure smart contracts that make up the Berachain ecosystem. Ideal candidates will have extensive experience in blockchain technologies, specifically Ethereum, and a strong background in smart contract development using Solidity or Vyper. ...

Lead Structural Engineer Bridges & Infrastructure

A government transportation agency in Toronto seeks a Lead Engineer, Structural to oversee engineering projects and ensure safety on transportation corridors. The ideal candidate will lead teams in structural design and project delivery, requiring a Professional Engineer license with expertise in bridge and tran ...

Remote Lead Smart Contract Engineer

Build-A-Bera is seeking a Smart Contract Engineer to design and implement secure smart contracts that make up the Berachain ecosystem. Ideal candidates will have extensive experience in blockchain technologies, specifically Ethereum, and a strong background in smart contract development using Solidity or Vyper. ...

Lead Substation Engineer 1 Grid

Description This position will offer you the ability to directly apply your knowledge of protective relaying and controls systems for HV and EHV substations. As a Lead Substtion Engineer, you will: Lead of an engineering and design team, you will work on a wide range of substation m ...

Fintech Lead Backend Engineer Role

Lead the way in fintech as a Backend Engineer responsible for critical payment systems. Your expertise will shape the financial APIs and infrastructure powering millions of transactions each day.This role calls for an individual with 7+ years of backend engineering experience, including at least 2 years in f ...

Water Building Mechanical Lead Engineer

A leading engineering firm located in Ontario seeks a Team Lead - Building Mechanical Engineers specializing in HVAC and plumbing systems. This role involves managing a team, ensuring technical excellence in project delivery, and requires strong leadership and design skills. Ideal candidates will have a Bachelor ...

Lead GRC Engineer at Vanta

Elevate your engineering career at Vanta as a Principal Software Engineer in Governance, Risk, and Compliance. Take on leadership and innovation in this exciting role focused on secure practices.This Principal Software Engineer position at Vanta offers an opportunity to directly influence engineering culture ...

DevSecOps & Secure SDLC Lead Engineer

Contribute to vital security measures as a Lead Engineer specializing in DevSecOps and Secure-SDLC. This role is essential for implementing security policies and enhancing software development best practices.Your work will focus on defining secure development requirements and ensuring comprehensive integrati ...

Principal Backend Engineer – Lead Architect

A leading technology firm in Toronto is seeking a Principal Staff Backend Engineer to lead the design and development of scalable enterprise systems. The role involves architecting platforms, driving technical direction, and mentoring engineers to ensure high-quality outputs. Ideal candidates will have over 10 y ...

Electrical Systems Lead Engineer Role

Join HDR's team in Calgary as a Senior Electrical Engineer, leading electrical systems design and ensuring project success through collaboration and compliance with standards.This role calls for a detailed-oriented Senior Electrical Engineer who can navigate the complexities of electrical design for various ...

Data Engineer Lead at Morningstar

Drive the future of data engineering as a Principal Software Engineer at Morningstar in Toronto. Lead the migration to a cloud-native platform while architecting scalable data pipelines.This senior role requires a technical thought leader to oversee data platform architecture. You will partner with product o ...

Senior IT Engineer (Onsite Lead)

About Zip Zip is the AI platform for enterprise procurement — built for humans and agents working together. By orchestrating procurement across teams, tools, and suppliers with the help of AI agents, companies can secure the resources they need to innovate faster than ever before. T ...

DevOps Engineer Lead at RBC

Join the RBC team as a Lead DevOps Engineer, where innovation meets application development in a hybrid setting based in Toronto. Spearhead CI/CD pipeline design while ensuring best practices are followed for robust software delivery.This 5-month contract role is ideal for a seasoned professional eager ...

Senior IT Engineer (Onsite Lead)

About ZipZip is the AI platform for enterprise procurement — built for humans and agents working together. By orchestrating procurement across teams, tools, and suppliers with the help of AI agents, companies can secure the resources they need to innovate faster than ever before. The world’s most influ ...

🚀 Boost Your Hiring Chances with Our AI-Powered Tool-Kit

Stand out from thousands of applicants. Use our proven career tools to optimize your applications and land your dream job faster.

To-Do Planner

Organize your job search and personal tasks. All data is confidential.

Open Planner

Wellbeing Center

Access your confidential wellness report and resources to manage job search stress.

Check Wellbeing

Skill Coach

Plan your skill development with O*NET support to stay competitive in your field.

Start Coaching

Outfit Helper

Get AI-powered suggestions on what to wear for your next interview.

Find Outfit

Income Tax Calculator

Plan your finances with our calculator, updated for 2025 tax regulations.

Calculate Tax

Salary Benchmark

Get accurate, AI-supported salary trends to know your worth and negotiate better.

Check Salaries

Interview Practice

Practice for any interview with AI-enabled Q&A sessions. All data is private.

Start Practicing

Interview Predictor

Use our AI-supported tool to predict potential interview questions based on your resume.

Predict Questions

Interview Practice Timer

Use our mock interview trainer to perfect your answers under timed conditions.

Start Timer

Behavioral Mastery

Ace tricky behavioral interviews with our AI-powered practice module.

Master Answers

Question Journal

Confidentially record interview questions you were asked for future reference.

Open Journal

Interview Ace

A comprehensive tool to help you master every aspect of your interviews.

Become an Ace

Q&A Logs

Confidentially track your answers to common questions and refine them over time.

View Logs

Application Planner

Schedule and organize your job applications in one confidential planner.

Open Planner

Cover Letter Tool

Create perfect, tailored cover letters for each application with AI support.

Generate Letter

Resume Score

Get instant feedback on your resume with our NLP-supported analysis tool.

Check My Score

ATS Score

Check your resume's compatibility with Applicant Tracking Systems (ATS).

Check ATS Score

Application Analyzer

Use AI to analyze job descriptions and optimize your application materials.

Analyze Application

Career Visualizer

Confidentially plan and visualize your long-term career path and goals.

Visualize My Career

Offer Genius

Get intelligent insights and strategies to confidently negotiate job offers.

Negotiate Offers

JobFlow

Track your entire job search progress from application to offer with this intelligent tool.

Track My Flow

JobSense

Our intelligent matching engine that provides smart job recommendations.

Get Smart Matches

Networking Toolkit

Tools to build and manage your professional connections. All data is confidential.

Build Network

Professional CV

A classic, O*NET supported template for corporate and professional roles.

Use This Template

Executive CV

A premium, O*NET supported template designed for senior and C-level positions.

Use This Template

Modern CV

A fresh, stylish, O*NET supported template perfect for tech and modern industries.

Use This Template

Creative CV

A visually distinct, O*NET supported template for design and artistic roles.

Use This Template

Minimalist CV

A clean, simple, O*NET supported template that focuses purely on content.

Use This Template

Europass CV

The standard European Union recommended format for wide compatibility.

Use This Template

Student CV

An institution-recommended template perfect for internships and first jobs.

Use This Template

Graduate CV

An institution-recommended template for recent graduates entering the workforce.

Use This Template

Academic CV

The researcher-recommended format for roles in academia and research.

Use This Template

Developer/IT CV

A tech-savvy recommended template to highlight your technical skills.

Use This Template

Skilled Worker CV

A trades-recommended template to showcase hands-on skills and experience.

Use This Template

Monochrome CV

A sleek, black-and-white, O*NET supported template for a professional look.

Use This Template

Art CV

An artist-recommended template that allows your creativity to shine.

Use This Template

Harvard CV

A researcher-recommended template based on the classic Harvard format.

Use This Template

Volunteer Research

Help us improve our platform by joining our community research program.

Join Research

Review Us

Share your experience with our tools to help other job seekers.

Share Experience

Register

Create your free account to save jobs, build your profile, and track applications.

Create Account

Login

Access your dashboard, manage applications, and continue your job search.

Access Your Account

Profile Builder

Create a comprehensive professional profile that attracts recruiters and showcases your skills.

Build Your Profile

View Profile

See your public profile exactly as employers will see it. Make sure it's perfect.

Preview Profile

Bookmarked Jobs

Keep track of all your saved job opportunities in one organized place.

View Saved Jobs

Your Reviews

View and manage all the company reviews you've submitted.

See Your Reviews

Following

Manage the list of companies you follow to stay updated on their new openings.

Manage Following

Find Companies

Discover and research top employers in your country and industry.

Discover Employers

Standalone CV Builder

Use our O*NET supported CV builder to create a professional resume from scratch.

Build Your CV

PDF to DOC (Beta)

Convert your PDF resumes or documents into editable Word (DOC) format.

Convert PDF

DOC to PDF (Beta)

Create universally compatible PDF documents from your Word (DOC) files.

Create PDF

General FAQ

Find answers to common questions about our job site and platform.

Read FAQ

Job Seekers FAQ

Get help and find answers to questions specifically for job seekers.

Get Help

Job Matching

Learn about the technology and algorithms behind how we match you to jobs.

Learn How

Personalized Matching

Discover how we use your profile and activity to provide customized job suggestions.

Learn More

Quick Apply

Understand our fast application process and how to make the most of it.

Learn More

Alert Frequency

Learn how to manage your job alert settings so you get the updates you want.

Manage Settings

Job Alerts Guide

A complete guide to understanding how job alerts work and how to use them effectively.

Read Guide

Resume Matching

Learn how our system matches your resume to job requirements.

Learn More

Ethical Branding

Read our guide to building a professional and ethical personal brand.

Read Guide

Candidate Visibility

Learn how to increase your visibility to recruiters on our platform.

Increase Visibility

Verified Badge

Find out how you can get a verified badge to build trust with employers.

Get Verified

AI ATS Technology

Learn about the advanced AI and ATS technology that powers our platform.

Learn More

ATS Ranking

Understand how Applicant Tracking Systems rank you as an applicant.

Learn More

Semantic Matching

Learn how our AI-powered semantic matching goes beyond keywords.

Learn More

    Lead Software Engineer Pythonreact Jobs in Toronto Job Search Guide, Trends and Insights